Game handler refactor: CharlestonBlindPassHandler.cs
Game handler refactor: CharlestonPassHandler.cs
Game handler refactor: GameOverHandler.cs
Game handler refactor: CourtesyHandler.cs
Game handler refactor: WaitingForPlayersHandler.cs. Also made a fix to previous refactoring.
Game handler refactor: WaitingForPlayersOrStartHandler.cs
Game handler refactor: DiscardTilePickupHandler.cs
Game handler refactor: VoteOnOptionalCharlestonHandler.cs
Game handler refactor: VoteOnCourtesyHandler.cs
Game handler refactor: VerifyingMahJonggHandler.cs